130267-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130267-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,6 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 130267-89:
(8*1)+(7*3)+(6*0)+(5*2)+(4*6)+(3*7)+(2*8)+(1*9)=109
109 % 10 = 9
So 130267-89-9 is a valid CAS Registry Number.
130267-89-9Relevant academic research and scientific papers
Cyclopentenone annulation reaction using (E)-1-(phenylseleno)-2-(trimethylsilyl)ethene
Yamazaki,Hama,Yamabe
, p. 2917 - 2920 (2007/10/02)
Reaction of (E)-1-(phenylseleno)-2-(trimethylsilyl)ethene (1) with 1-cyclopentenoyl chloride (2) in the presence of Lewis acid gave 1-phenylselenobicyclo]3.3.0]oct-3-en-2-one (3). When the reaction was carried out at low temperature, Z-1-(1'-cyclopentenyl
